﻿// ***********************************************************************************************************************************************************
// * Copyright (c) 2008 Unit Software                                                                                                                        *
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// * IN THE SOFTWARE.                                                                                                                                        *
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using System;
using System.Linq;
using NUnit.Framework;
using UnitSoftware.LINQ2SQLExtensions;

namespace LINQ2SQLExtentionsUnitTestSuite
{
    [TestFixture]
    public class TransientDataContextWrapperTests
    {
        [Test]
        public void NewEntity()
        {
            var transientContext = DataContextFactory.INSTANCE.GetNewDataContext();

            transientContext.ClearAllData();

            var transientInvoice = new Invoice{Raised=DateTime.Now};

            var wrapper = new TransientDataContextWrapper(transientContext);
            
            //This register the new entity so that all changes to it can be recorded
            wrapper.RegisterNew(transientInvoice);

            //This is the equivalent of calling DataContext.InsertOnSubmit(..)
            wrapper.Persist(transientInvoice);

            var masterContext = DataContextFactory.INSTANCE.GetNewDataContext();

            var newInvoice = wrapper.Execute(masterContext).GetInserts<Invoice>()[0];

            Assert.AreEqual(1, masterContext.Invoices.Count());
            Assert.AreNotEqual(newInvoice,transientInvoice);
            Assert.AreEqual(transientInvoice.Raised, newInvoice.Raised);
        }
    }
}